@caffrey - Pretty much what I am expecting here, a few whiners etc but ultimately it's the best thing to do for the school. I am concerned about the lack of control over it, so like you mentioned if bullying etc goes on then we can't really do anything .
I'm in the same boat with 365, heard of a lot people having technical issues with it, which is why I'm more attracted to google's services at the moment. Plus I don't trust MS to not start charging for various things after they've roped you in. I also don't like the direction they're going with Windows 8/8.1 and am concerned 365 will end up in a similar mess.